Subtractive earth is Unseen.
This is the force of unseen change. The unseen changes will be
undetected if not looked for. This can be anything to casters will
through imagination or desire. One can make anything happen and
it will be undetected.

Subtraction lava is Unseen
Reverse. Use this force of lava to heat yourself and to force a
removal unseen. When this lava runs along the ground it will undo
any anything in the area. The heat of this lava is decided upon
by the wielder.

Subtractive fire is Reverse.
The power of Reverse is the power to render any attack effect opposite.
Thus one can also make a negative effect positive or vice versa.
This will only effect what the caster desires and will make a suitable
shield. Make behavior modifications by this force. This is only
a force to be used.

Subtractive firewater is Reverse
Undoing. Use this firwater to undo while reversing events to wipe
the event from history. The usage of this always leaves a storm
while in effect so another name is erasure firewater.

Subtractive water is Undoing.
This water will make anything as if undone when used with feeling and
imagination. There can be feeling manipulation of the Undoing force
as well. Make mistakes disappear with the use of this force. This
is only a force of water like vapors.

Subtractive ice is Making.
This ice when in effect as a force an will make, the item return that
is imagined as if by will to desolve the tissue. You can cause the muscles
to spasm or disollution in the upper worlds. To make an effect or event
come as an idea back as if the caster wills it. Make any event or item
with this force. Sometimes when in thought this when making it alerts
people.

Subtractive air is Nothing
or Dark Matter. Dark matter supports 98% of the universe and is
unseen. The power of Nothing is Dark Matter manipulation. This
power will support everything. Call forth a lost memory if the one
so desires. This Force is a great storage device of everything
lost or destroyed. This force is controlled by belief or Forcecraft.

The lightning formed from
this air by compression will make the person do nothing. It is
formed from Nothing air and Energy fire.

Further elemental combinations:

Subtractive earth water is unseen undoing oil. This be the oil that causes unseen undoing of actions and events.

Subtractive earth air is undoing dark matter gravity. this be the gravity of dark matter thats undoing whatever is near.

Firey subtractive air is reverse nothing heat. This be the reversing of events and by a seeming nothingness heat.

Subtractive water and subtractive earth is undoing unseen mud. This mud
is enchanted by the idea thought to it, of 'undoing the unseen'. It is
spread about or allowed to spread, and it undoes the unseen to you
actions.

Subtractive air with subtractive earth is dark matter undoing energy.
This is the energy of the darkmatter and is similar to void energy. It
causes an undoing of events by it effecting or affecting the area.

Furthermore..

Subtractive Forcecraft is
the art of subtractive weaving. This is the collaborative effort
of the entire Subtractive Elements. The Subtractive art is a solitary
art that will literally bring the weaver to power. Abuse is possible
so do not overuse.